Discomfort in the abdominal area may occur in the middle of the trimester. Due to the growing uterus, the load on the supporting ligamentous apparatus increases. Another reason may be increased uterine tone during pregnancy, when a woman feels like her stomach is turning to stone. If the pain goes away on its own, there is no need to worry. But if they are permanent and intensify, you should consult a doctor and undergo treatment in a hospital.
Due to a shift in the center of gravity, the load on the spine increases. To help yourself, wear a brace during long walks, choose low-heeled shoes, and do exercises to strengthen your back muscles.